Getting technical cofounders is pretty tough if you don't know much about tech. Too many non-technical founders are interested in technical cofounders to "Build their idea for them". I don't think this arrangement is a co-founder arrangement as much as it is a work-for-hire agreement. The key with getting a technical co-founder is that you actually "co-found" the idea together. It is just as much as his idea as it is yours. If you keep this in mind, finding the right technical co-founder will become easier.